title: Intra-channel nonlinearity in differentially phase-modulated transmission.
abstract: The mechanisms responsible for nonlinear impairments in single-channel phase modulated system employing differential detection are investigated. The role of dispersion precompensation is discussed. It is shown that precompensation may be designed as to minimize the in-phase components of the fluctuations thus reducing nonlinear impairments. In differential-phase-shift-keying the effect of precompensation is stronger than in differential-quadrature-phase-shift-keying. The results of an analytic theory are compared with split-step based computer simulations using realistic system parameters.
authors.affiliation: Department of Physics, University of L'Aquila, L'Aquila, Italy. antonio.mecozzi@univaq.it
authors.forename: A
authors.initials: A
authors.lastname: Mecozzi
authors.forename: M
authors.initials: M
authors.lastname: Tabacchiera
authors.forename: F
authors.initials: F
authors.lastname: Matera
authors.forename: M
authors.initials: M
authors.lastname: Settembre
mesh_terms: D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012542:Scattering, Radiation; D013685:Telecommunications